Abstract: An apparatus is disclosed for supporting an electronic device, such as a laptop computer, a tablet computer, a smartphone, or an e-reader when travelling on a train or other public transportation. The apparatus is designed to fold into a portable, compact unit when not being used. The apparatus may be hung from a peg in the seatback in front of the user and is capable of folding out into an open position capable of supporting the electronic device. The device includes a seat bracket and two arms which open into a vee in order to support the electronic device. In one embodiment, the arms are telescopic in order to support electronic devices of differing sizes. In another embodiment, the arms have one or more rises which permits the electronic device to be support in a substantially upright position.